EventSpy

All Known Implementing Classes:

AbstractEventSpy
```
public interface EventSpy
```
A core extension to monitor Maven's execution. Typically, such an extension gets loaded into Maven by specifying the system property maven.ext.class.path on the command line. As soon as dependency injection is setup, Maven looks up all implementers of this interface and calls their init(Context) method. Note: Implementors are strongly advised to inherit from AbstractEventSpy instead of directly implementing this interface.

Since:

3.0.2

Nested Class Summary

Nested Classes
Modifier and Type Interface Description

static interface EventSpy.Context
Context

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`close()`	Notifies the spy of Maven's termination, allowing it to free any resources allocated by it.
`void`	`init(EventSpy.Context context)`	Initializes the spy.
`void`	`onEvent(java.lang.Object event)`	Notifies the spy of some build event/operation.

- Method Detail
  - init
```
void init(EventSpy.Context context)
   throws java.lang.Exception
```
    Initializes the spy.
    
    Parameters:
    
    context - The event spy context, never null.
    
    Throws:
    
    java.lang.Exception
  - onEvent
```
void onEvent(java.lang.Object event)
      throws java.lang.Exception
```
    Notifies the spy of some build event/operation.
    
    Parameters:
    
    event - The event, never null.
    
    Throws:
    
    java.lang.Exception
    
    See Also:
    
    SettingsBuildingRequest, SettingsBuildingResult, MavenExecutionRequest, MavenExecutionResult, DependencyResolutionRequest, DependencyResolutionResult, ExecutionEvent, RepositoryEvent
  - close
```
void close()
    throws java.lang.Exception
```
    Notifies the spy of Maven's termination, allowing it to free any resources allocated by it.
    
    Throws:
    
    java.lang.Exception